+12  A: 

Its because the file is saved as CMYK and not RGB-mode

molgan
Exactly. See here, for example: http://blog.traxor-designs.com/2009/02/internet-explorer-jpeg-cmyk-issues.html
balpha
You, my friend, are a hero among men.
Rich Bradshaw
+4  A: 

I've been facing a similar problem. In my case image color encoding was the problem. Check if the image is RGB encoded. CMYK encoding may cause problem in different browsers.

michele